The parent is spot on. Bell Labs was the first to leave the Multics project.
It took several years for Thompson, Ritchie, McIlroy and Ossanna to get funding.
They did it under the radar with a PDP-7 garbage picked by Thompson while sending letter after letter to get funding for a DEC PDP-10 or Sigma7 which they would use to create the OS and play games/simulations (i.e. Space Travel). Mind you computer time in the late 60's was upwards to $75 and hour.
After all is said and done Bell Labs at the time was a government regulated national telecommunications monopoly and was not allowed to sell it. They could licenses it though and did. Berkeley only had to pay for the tapes since they where a school.
FWIW they didn't get the funding based on asking to program an unspecified OS but to create system specifically designed for editing and formatting text. The big buzzword back then was "word processing". Also the higher ups already knew by then that they had something which Ken and Dennis had done on their own. AT&T bought them a PDP-11 and the first end user applications where for AT&T patent dept. to be used by secretaries.
Thus, during 1969, we began trying to find an alternative to Multics. The search took several forms. Throughout 1969 we (mainly Ossanna, Thompson, Ritchie) lobbied intensively for the purchase of a medium-scale machine for which we promised to write an operating system; the machines we suggested were the DEC PDP-10 and the SDS (later Xerox) Sigma 7. The effort was frustrating, because our proposals were never clearly and finally turned down, but yet were certainly never accepted. Several times it seemed we were very near success. The final blow to this effort came when we presented an exquisitely complicated proposal, designed to minimize financial outlay, that involved some outright purchase, some third-party lease, and a plan to turn in a DEC KA-10 processor on the soon-to-be-announced and more capable KI-10. The proposal was rejected, and rumor soon had it that W. O. Baker (then vice-president of Research) had reacted to it with the comment `Bell Laboratories just doesn't do business this way!' --Ritchie 1979 http://cm.bell-labs.com/who/dmr/hist.html
Towards the end of the 80's Berkeley students took a nod from Richard Stallman and put their distribution on the net (which was mostly rewritten at that point (It was Keith Bostic who proposed removal of non-AT&T code)).
ATT UNIX was licensed at about $200k while the BSD patchset was just a piece of software you added if for anything the TCP/IP stack, vi, job control, curses, mail services and csh.
I don't for a minute believe that Google or ATT are in any way for the greater good of society and research any more than I would believe that apple or microsoft care about education and/or removing vender lock-in. It's not like any of the aforementioned monopolies have invested in real problems like cancer research and/or a cure.
If you want to explore the innovators it's best to look at the McIlroys, Thompsons and Ritchies, Bostics and Stallmans and so fourth who really did innovate and change our lives for the better.